<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <form id="form" enctype="multipart/form-data" method="post" action="http://localhost:8080/hello/test">
        <input type="file" name="file" value="选择附件">
        <button type="submit" value="">确定</button>
    </form>
</body>
</html>